A5018181061- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Quantum Chromodynamics and Particle Interactions
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Synthesis and Characterization of Heterocyclic Compounds
- Neutrino Physics Research
- Chemical Reaction Mechanisms
- Chemical Synthesis and Reactions
- Carbon Nanotubes in Composites
- Synthesis and Biological Evaluation
- Chemical Synthesis and Analysis
- Synthesis and Catalytic Reactions
- Computational Physics and Python Applications
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Synthesis of heterocyclic compounds
- Chemical Reactions and Mechanisms
- Synthesis and Reactions of Organic Compounds
- Enzyme function and inhibition
- Inorganic and Organometallic Chemistry
- Fluorine in Organic Chemistry
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Analytical Chemistry and Chromatography
Institute of Synthetic Polymeric Materials
2016-2025
Moscow Institute of Physics and Technology
2015-2024
Helsinki Institute of Physics
2015-2024
University of Helsinki
2015-2024
Siberian State University of Water Transport
2023
Laboratoire de Cristallographie et Sciences des Matériaux
2014-2022
Skolkovo Institute of Science and Technology
2017-2021
Rybinsk State Aviation Technological Academy
2019-2020
Prokhorov General Physics Institute
2012-2016
Russian Academy of Sciences
2003-2015
The search for the a Standard Model Higgs boson at LHC is reaching critical stage as possible mass range particle has become extremely narrow and some signal of about 125 GeV starting to emerge. We study implications these searches portal models dark matter in rather model independent way. Their impact on cosmological relic density direct detection rates are studied context generic scalar, vector fermionic thermal particles. Assuming sufficiently small invisible decay branching ratio, we...
This chapter of the report "Flavor in era LHC" Workshop discusses theoretical, phenomenological and experimental issues related to flavor phenomena charged lepton sector conserving CP-violating processes. We review current limits main theoretical models for structure fundamental particles. analyze consequences available data, setting constraints on explicit beyond standard model, presenting benchmarks discovery potential forthcoming measurements both at LHC low energy, exploring options...
We explore a ``fertile patch'' of the heterotic landscape based on Z_6-II orbifold with SO(10) and E_6 local GUT structures. search for models allowing exact MSSM spectrum. Our result is that order 100 out total 3\times 10^4 inequivalent satisfy this requirement.
We present a ${\mathbb{Z}}_{6}$ orbifold compactification of the ${\mathrm{E}}_{8}\ifmmode\times\else\texttimes\fi{}{\mathrm{E}}_{8}$ heterotic string which leads to (supersymmetric) standard model gauge group and matter content. The quarks leptons appear as three $\mathbf{16}$-plets SO(10), whereas Higgs fields do not form complete SO(10) multiplets. has large vacuum degeneracy. For generic vacua, no exotic states at low energies is consistent with coupling unification. top quark Yukawa...
Consistent uplifting of AdS vacua in string theory often requires extra light degrees freedom addition to those a (Kähler) modulus. Here we consider the possibility that de Sitter and Minkowski arise due hidden sector matter interactions. We find that, this scheme, hierarchically small supersymmetry breaking scale can be explained by gaugino condensation interesting patterns soft terms arise. In particular, matter-dominated scenario version mirage mediation scheme appear framework...
In a previous paper, referred to as ``Mini-Landscape'' search, we explored ``fertile patch'' of the heterotic landscape based on ${\mathbb{Z}}_{6}\ensuremath{-}\mathrm{II}$ orbifold with SO(10) and ${\mathrm{E}}_{6}$ local grand unified theory structures. present paper extend this analysis. We find many models minimal supersymmetric standard model spectra an exact $R$ parity. all these models, vectorlike exotics decouple along $D$-flat directions. two benchmark which satisfy constraints...
We complete our search for MSSM vacua in the Z_6-II heterotic orbifold by including models with 3 Wilson lines. estimate total number of inequivalent this to be 10^7. Out these, we find almost 300 exact spectrum, gauge coupling unification and a heavy top quark. Models these features originate predominantly from local GUTs. The scale gaugino condensation hidden sector is correlated properties observable such that soft masses TeV range are preferred.
In the Higgs portal framework, field generally mixes with Standard Model singlet leading to existence of two states, one which is identified 125 GeV scalar observed at LHC. this work, we analyse direct and indirect constraints on second mass eigenstate corresponding mixing angle. The additional can be beneficial as it stabilise otherwise-metastable electroweak vacuum. We find parameter regions where all bounds, including stability constraints, are satisfied. also study prospects for...
We consider a simple Higgs portal dark-matter model, where the standard model is supplemented with complex scalar whose imaginary part plays role of weakly interacting massive particle dark matter (DM). show that direct DM detection cross section vanishes at tree level and zero momentum transfer due to cancellation by virtue softly broken symmetry. This operative for any mediator masses. As result, our electroweak-scale satisfies all phenomenological constraints quite naturally.Received 14...
The discovery of the Higgs boson has opened a new avenue for exploring physics beyond Standard Model. In this review, we discuss cosmological aspects simplest couplings to hidden sector, known as portal. We focus on implications such inflation, vacuum stability and dark matter, with latter including both traditional weakly interacting massive particles well feebly scalars. impact portal can be important even tiny values couplings.
The predictivity of many nonthermal dark matter (DM) models is marred by the gravitational production background. Nevertheless, if reheating temperature <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>T</a:mi><a:mi>R</a:mi></a:msub></a:math> low, gravitationally produced relics can be diluted. We study freeze-in mechanism at temperatures below mass. In this case, coupling to thermal bath has significant account for observed relic density. As a result,...
We consider the possibility that fermionic dark matter (DM) interacts with Standard Model fermions through an axial Z' boson. As long as decays predominantly into matter, relevant LHC bounds are rather loose. Direct detection does not significantly constrain this scenario either, since scattering on nuclei is spin--dependent. a result, for range of mass and couplings, DM annihilation cross section large enough to be consistent thermal history Universe. In framework, WIMP paradigm, which...
SU(N) Lie algebras possess discrete symmetries which can lead naturally to stable vector dark matter (DM). In this work, we consider the possibility that sector couples visible through Higgs portal. We find minimal CP–conserving hidden "Higgs sectors" entail massive gauge fields fall into WIMP category of candidates. For SU(N), N > 2, DM consists three components, two are degenerate in mass. all cases, there substantial regions parameter space where direct and indirect detection as well...